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The iPhone is a smartphone produced by Apple Inc. Improvements since launch include Assisted GPS, a thicker body, a black plastic back (instead of silver) or white option with a 16Gb iPhone, solid metal buttons, a flush headphone jack, and dramatically improved audio. The key improvement, however, is the addition... Read More

The iPhone is a smartphone produced by Apple Inc. Improvements since launch include Assisted GPS, a thicker body, a black plastic back (instead of silver) or white option with a 16Gb iPhone, solid metal buttons, a flush headphone jack, and dramatically improved audio. The key improvement, however, is the addition of 3G (specifically HSDPA 7.2) capability, enabling 2.8X faster data-transfer speeds. See Less